Furnace chill and floor-pipe.



W. S. ROCKWELLIA FURNACE CHILL AND FLOOR PIPE.

APPLICATION FILED J-AN. t5, 191i.

.Lm Patented May 29, v1917.

NTFAD lliAllldfi liheil'ltillilhlli WALTER S. ROCKWELL, OENEW YORK, 1\T.Y., ASSIGNR TO W. S. ROCKWELL COMPANY,

0F NEW YORK, N. Y., A CORPORATION 0F NEW JERSEY.

FUR/NACE CHILL AND FLOOR-PIPE.

Specication of Letters Patent.

Patented May 29, 19M

To all whom 5 may concern.'

Be it known that LWALTER S. Rooiiwnnn,

a citizen of the United States, residing at 300 West One Hundred andSixth street,

New York, county of New York, and State of New York, have inventedcertain new and useful Improvements in Furnace Chills and Floor-Pipes,fully described and represented in the following specification and theaccompanying drawings, forming a part of the same.

The invention comprises a water-box or chill located in the wall of thefurnace cpposite tol and in a line with the chargingdoor, and employedas a means of connecting and circulating water through pipeslaid uponthe Hoor of the heating-chamber to support billets, ingots and othermetallic objects, to facilitate their movement through the chamber.

Such pipes in the present invention are extended in a straight line fromthe charging-door into tap-holes formed in the nearer side of the chilland screwed therein so that water supplied to the 4chill circulates inthe floor-pipe. The floor-pipes are connected with outlets, preferablyoutside the charging-door.

Where the furnace is heated by gas or vaporous fuel, the chill may belocated within the end wall of the furnace opposite to thecharging-door, but when the furnace is heatedby coal, the chill would belocated in a bridge-wall extended transversely between the lire-box andthe heating-chamber.

The connection of the pipes to the chill is, owing to thel heat, liableto rust and deterioration, and by their extension from the charging-doordirectly to the chill, the floorpipes can be readily disconnected fromthe chill by grasping them, outside of the charging-door, and turningthem to unscrew them from the tap-holes in the chill. To effect this,the pipes must be straight and rotatable.

In this construction, the tap-holes in the side of the chill arenecessarily made at the level of the floor or piers upon which thefloor-pipes rest, so that the pipes may eX-l tend in a straight linefrom the chargingdoor to the chill, which construction permits the pipesto be unscrewed from the chill when desired.

By their direct connection to the chill, the

Hoor-pipes when worn may be partially rotated in order to present to theingots or billets new wearing surfaces, and thus prolong the life of thepipe.

Such straight pipes having threaded connections with the chill canobviously be unscrewed from the chill and new pipes substituted withoutcooling down the furnace.

This avoids the shutting down of the furnace and a long delay in coolingit off, which would be necessary if the pipes and chill were joinedtogether by any complicated connections.

rllhe invention will be fully understood by reference to the annexeddrawing, in which Figure l is a plan in section on line l-l in Fig. 2;Fig. 2 is a longitudinal section of the furnace taken adjacent to one ofthe Hoor-pipes; Fig. 3 is a similar section of a gas-heated furnace;Fig. 4C is a plan of the feeding-end of the furnace of Fig. l; Fig. 5 isa transverse section of the chill and its connection with the floor-pipeby a plain tap-hole; and Fig. (i is a similar view with a threadedbushing inserted in the chill and tapped to receive the end In Figs. land 2, a designates the heatingchamber of the furnace which extends fromthe charging-door to a bridge-wall @which divides the heating-chamberfrom a. fireboX or combustion-chamber al in the end of of thefloor-pipe.

the furnace opposite to the charging-door b. l

charged.

A table g is shown outside the chargingdoor b to support the ingots 7i,the table resting uponu the sill Zi of the chargingdoor 6,' and c'represents a hydraulic pusher for propelling such ingots into thefurnace, and pushing them through the heatingchamber to the bridge-wall,where they are removed by suitable means operating through a door 7c or7c.

The Hoor-pipes Z are extended from the table g through thecharging-doorway in a direct line to the bridge-wall, the pipes beinglevel with the top of the table, and restingupon the floor formed withnumerous piers fm. to support the floor-pipes, and heat the bottoms ofthe ingots.

A hollow chill-box n is shown built into the bridgedvall and its endsextended partly into the side-Walls a of the furnace, being thus enabledto strengthen and give a firm support to the bridge-wall.

rlhe upper part of the chill extends above the level of the floorsufficiently to receive tap-holes 0 in the side next the heatingchamberat the level of the floor, and the pipes, as shown in Fig. 5, arethreaded to screw into such tap-holes and thus form a water connectionWith the chill.

Tivo of the Hoor-pipes are shown in Fig. l, which number is sufficientto support one row or series of metal bodies while heating. Asupply-pipe 79 is shown connected to the chill near the bottom andprovided with a valve 79 to supply a fl'ovv of Water through the chilland the pipes Z. The pipes Z out side of the changing-door b arearranged for connection to a suitable Waste-pipe.

A union s is shown in the pipe Z, to disconnect the pipe Z when itsrenewal is required; the front plate of the table g beine*I notched, asshown at g in Fig. ll, to permit the end of the pipe to be lifted forunscrevv* ing -the elbow, after which the pipe can be unscreived fromthe chill and a yneu one inserted.

Fig. 3 is a longitudinal section of a furnace-chamber a2 heated by gasor vaporous fuel, a burner-inlet r being extended through the end-Wall gof the furnace for applying a burner at the end opposite thechargingdoorb.

In this construction, no bridge-Wall is required, but the connection ofthe flooripes Z With one another, and the supply of liquid thereto, isprovided by inserting a chill n in the end-Wall Q of the furnace.

rIhe tap-holes in the chill are at the level of the` pipes Z, so thatstraight pipes can be extended from the door b of the furnace directlyinto the chill and screwed therein, or unscreived, Without entering theheatingchamber, and this can be readily done when the furnace is hot ifthe Water be shut olf from the pipe j).

A side-door 76 is shown in Fig. to discharge the ingots, billets, &c.,from the rear end of the chamber When they have been gradually movedthereto. Such door 7c also permits access to the floor-pipes Where theyenter the chill. A floor-pipe can thus be removed and another insertedWithout cooling or shutting down the furnace.

Access to the pipes Where they enter the bridgeviall, or end-Wall, isalso provided by the door 7c or 7c', through which the pipes may bereached and manipulated by suitable tools Without cooling off thefurnace.

To render the oint between the pipe and the'chill more durable, 1preferv to bush each tap-hole in the chill, as shown in Fig. G, by ascrew-bushing 0, which is threaded to receive the end of the pipe, thesame as the tapehole 0 of Fig.

Any number of floorpipes can be con nected with the chill in the samemanner as the two which are shown herein, the chill simply requiringtap-holes to be made, in correspondence with the number of pipes, and ina line with the charging-doorvvay through Which the pipes are extended.

The introduction of Water to a chill Within a bric ige-Wall operates tomaterially lower the temperature of the bridge-wall and thus increaseits durability.

The table g is shown on a level with the upper sides of the floor-pipesso that any object can bc slid from the table to the pipes Withoutobstruction, and such table is, in practice, extended to the doorway Z)and is notched to clear the floorpipes Z.

lt is immaterial hoiv the exterior ends of the pipes be provided withsuitable outlets; and it is also immaterial.Whether the chill be placedwithin a Wall or not, as the double-ended furnace-chanrber heated by gasvvill require a bridge-ivall, and in such case the chill could belocated at the middle of the length of the chamber and floor-pipesextended into its opposite sides from the doors at the opposite ends ofthe furnace.

Having thus set forth the nature of the invention, what I claim hereinis:

l. A furnace having a heating-chamber with a charging-door at one endconnecting with the floor of said chamber, a chill located Within thechamber opposite to the charging-door and extended above the level ofthe floor and having tap-holes therein at the floor-level, and straightfloor-pipes extended from the said door directly into the chill andscrewed therein so that they can be released from the chill by mererotation.

2. A furnace having means at one end for heating the furnace-chamber,With a bridge- Wall adjacent to such end and a chill Within suchbridge-Wall, a charging-door at the o pposite end of the furnace, andstraight ro tatable floor-pipes extended from the door directly intosuch chill.

3. A furnace having means at one end for heating the chamber, with abridge-Wall adjacent to such end and a chill Within such bridge-Wall, acharging-door at the opposite end of the furnace, and straight rotatablefloor-pipes extended from the door directly into such chill and`connected detachably thereto to facilitate renewal of the pipes.

4l. A furnace having means at one end for heating the furnace-chamber,with a bridge Wall adjacent to such end, a charging-door at the oppositeend of the furnace and the furnace-chamber extending from the door tothe bridge-Wall, a chill in the bridge-Wall extended above the level ofthe said floor,

and floor-pipes extended into the bridge- Wall and connected detachablyto the chill at the level of the floor.

5. A furnace having a fire-box at one end With a bridge-Wall adjacentthereto, a charging-door at the opposite end of the furnace With afurnace-chamber extending from said door to the bridge-Wall, straightrotatable Hoor-pipes extended from the charging-door into thebridge-Wall and con nected detachably to the chill at the level of theHoor, and a discharge-door adjacent to the bridgewall affording accessto the pipes Where they enter the same.

6. A furnace having means at one end for heating the furnace, with abridge-Wall adjacent thereto, a door at the opposite end of the furnacewith a furnace-chamber extending from the door to the bridge-Wall, achill in the bridge-Wall extended above the level of the said floor, andprovided With Copies of this patent may be obtained for ve cents each,by addressing the tap-holes at the level of the chamber-Hoor, andfloor-pipes extended from the door in a direct line to the chill andscrewed into the tap-holes, means for supplying the chill with Water tocirculate throughV the pipes, and the pipe having outlets outside of thesaid door. i

7. A furnace having a heating-chamber with a door at one end, means atthe other end for heating the furnace-chamber, and a bridge-Walladjacent to such other end; a hollow Water-chill built Within thebridge- Wall and its ends extended into the sidewalls of the furnace tosupport the bridge- Wall more rigidly, and straight rotatablefloor-pipes extended from the door to the said chill, and Watercirculated through both the chill and the pipes.

In testimony whereof I have hereunto set my hand.

WALTER S. ROCKWELL.

Commissioner of Patents,

Washington, D. C.

Fil

